clang: use -fsantize=address and -fsanitize=thread

The previous syntax is deprecated.
matroska: Update the available size after lace parsing

Fix heap-buffer-overflow in matroska_parse_block for
corrupted real media in mkv files.

CC: libav-stable@libav.org

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
matroska: fix a corner case in ebml-lace parsing

Make sure we notice when the lace_size[n] is a negative value.

CC: libav-stable@libav.org
matroska: pass the lace size to the matroska_parse_rm_audio

Each lace must be independent according to the specification.

Fix heap-buffer-overflow in matroska_parse_block for
corrupted real media in mkv files.

Stricter check than fc43c19a567aa945398dccb491d972c11ec2a065

CC: libav-stable@libav.org